JP2003295112A5 - - Google Patents

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Publication number
JP2003295112A5
JP2003295112A5 JP2002104405A JP2002104405A JP2003295112A5 JP 2003295112 A5 JP2003295112 A5 JP 2003295112A5 JP 2002104405 A JP2002104405 A JP 2002104405A JP 2002104405 A JP2002104405 A JP 2002104405A JP 2003295112 A5 JP2003295112 A5 JP 2003295112A5
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JP
Japan
Prior art keywords
image display
light
optical system
light beam
scanning image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
JP2002104405A
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Japanese (ja)
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JP2003295112A (en
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Publication date
Application filed filed Critical
Priority to JP2002104405A priority Critical patent/JP2003295112A/en
Priority claimed from JP2002104405A external-priority patent/JP2003295112A/en
Priority to EP03251708A priority patent/EP1351522A3/en
Priority to US10/404,527 priority patent/US6798575B2/en
Publication of JP2003295112A publication Critical patent/JP2003295112A/en
Publication of JP2003295112A5 publication Critical patent/JP2003295112A5/ja
Abandoned legal-status Critical Current

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Claims (7)

画像信号に応じて変調した互いに異なる波長領域の光束を射出する複数の光源と、これら光源から射出された複数の光束を合成する光束合成手段と、この光束合成手段により合成された光束を被投射面に対し走査して画像を表示する走査手段とを有する走査型画像表示光学系であって、
前記光束合成手段として、光に回折作用を及ぼす回折素子が用いられていることを特徴とする走査型画像表示光学系。A plurality of light sources that emit light beams in different wavelength regions modulated according to image signals, a light beam combining unit that combines a plurality of light beams emitted from these light sources, and a light beam synthesized by the light beam combining unit is projected. A scanning image display optical system having a scanning unit that scans a surface and displays an image,
A scanning image display optical system, wherein a diffractive element that diffracts light is used as the light beam combining means . 前記光源から射出される光束の偏光方向が、前記回折素子において回折格子が延びる方向に対して略平行又は略直交することを特徴とする請求項１に記載の走査型画像表示光学系。  The scanning image display optical system according to claim 1, wherein a polarization direction of a light beam emitted from the light source is substantially parallel or substantially orthogonal to a direction in which a diffraction grating extends in the diffraction element. 前記回折素子は、この回折素子に互いに異なる角度で入射する複数の光束を、互いに異なる回折次数に回折させることを特徴とする請求項１に記載の走査型画像表示光学系。  The scanning image display optical system according to claim 1, wherein the diffraction element diffracts a plurality of light beams incident on the diffraction element at different angles to different diffraction orders. 前記光源が発散光としての光束を射出するものであり、
前記光源と前記回折素子との間に、光束を略平行光化するコリメータ光学系を配置されたことを特徴とする請求項１に記載の走査型画像表示光学系。The light source emits a luminous flux as diverging light,
The scanning image display optical system according to claim 1, wherein a collimator optical system for collimating a light beam is disposed between the light source and the diffraction element. 前記走査型画像表示光学系の前記光束が複数の可視光領域の光束からなり、前記回折素子の周期構造の繰り返し周期が５μｍ以上であることを特徴とする請求項１から４のいずれかに記載の走査型画像表示光学系。According to any one of claims 1 to 4, wherein the light beam of the scanning type image display optical system is made of a light bundle of a plurality of visible light region, the repetition period of the periodic structure of the diffraction element is 5μm or more Scanning image display optical system. 請求項１から５のいずれかに記載の走査型画像表示光学系を備えたことを特徴とする走査型画像表示装置。  A scanning image display device comprising the scanning image display optical system according to claim 1. 請求項６に記載の走査型画像表示装置と、この走査型画像表示装置に前記光源から射出される光束を変調するための画像信号を供給する画像供給装置とを有することを特徴とする画像表示システム。  An image display comprising: the scanning image display device according to claim 6; and an image supply device that supplies the scanning image display device with an image signal for modulating a light beam emitted from the light source. system.
JP2002104405A 2002-04-05 2002-04-05 Scanning image display optical system, scanning image display device and image display system Abandoned JP2003295112A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002104405A JP2003295112A (en) 2002-04-05 2002-04-05 Scanning image display optical system, scanning image display device and image display system
EP03251708A EP1351522A3 (en) 2002-04-05 2003-03-19 Scanning type display optical system, scanning image display apparatus, and image display system
US10/404,527 US6798575B2 (en) 2002-04-05 2003-04-01 Scanning type display optical system, scanning image display apparatus, and image display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002104405A JP2003295112A (en) 2002-04-05 2002-04-05 Scanning image display optical system, scanning image display device and image display system

Publications (2)

Publication Number Publication Date
JP2003295112A JP2003295112A (en) 2003-10-15
JP2003295112A5 true JP2003295112A5 (en) 2005-09-15

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JP2002104405A Abandoned JP2003295112A (en) 2002-04-05 2002-04-05 Scanning image display optical system, scanning image display device and image display system

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US (1) US6798575B2 (en)
EP (1) EP1351522A3 (en)
JP (1) JP2003295112A (en)

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